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Paul Grice and the philosophy of language

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PAUL GRICE AND THE PHILOSOPHY OF LANGUAGE 513<br />

And it is only because philosophers have been prone to misuses <strong>of</strong> <strong>the</strong><br />

expression "voluntary", extending it to actions where <strong>the</strong>re is no question<br />

<strong>of</strong> fault, says Ryle, that <strong>the</strong>y have so easily come up with <strong>the</strong> traditional<br />

problem <strong>of</strong> free will. If philosophers were to guard against such unwarranted<br />

departures from ordinary usage, <strong>the</strong>y would find it difficult to<br />

formulate a genuine philosophical problem here.<br />

A second example concerns any attempt to provide analyses <strong>of</strong> knowledge<br />

in terms <strong>of</strong> belief along <strong>the</strong> following lines: A knows that p if <strong>and</strong><br />

only if (i) A believes that p, (ii) p, <strong>and</strong> (iii) A is justified in believing that<br />

p. To this suggestion it might be charged that it is a feature <strong>of</strong> <strong>the</strong> use <strong>of</strong><br />

<strong>the</strong> verb 'believe' that one does not use it if one can sincerely use <strong>the</strong><br />

verb 'know' in its stead. Such a claim might be backed up by appealing<br />

to <strong>the</strong> observation that it would be quite inappropriate for A to say "I<br />

believe that my wife is ill" when A knows that his wife is ill. And so it<br />

might be concluded that <strong>the</strong> proposed analysis must be discarded because<br />

clause (i) does such violence to <strong>the</strong> ordinary use <strong>of</strong> <strong>the</strong> verb 'believe'. 6<br />

Out <strong>of</strong> this general concern for <strong>the</strong> nuances <strong>of</strong> ordinary talk, <strong>the</strong>re<br />

emerged in Oxford a reaction to <strong>the</strong> view that expressions <strong>of</strong> natural<br />

<strong>language</strong> have an exact semantics that can be captured using <strong>the</strong> devices<br />

<strong>of</strong> classical logic. The revolt began <strong>of</strong>ficially in 1950 with <strong>the</strong> publication<br />

in Mind <strong>of</strong> Strawson's "On Referring", essentially a full-scale attack on<br />

Russell's Theory <strong>of</strong> Descriptions. According to Russell, <strong>the</strong> proposition<br />

expressed by a sentence <strong>of</strong> <strong>the</strong> form ~<strong>the</strong> F is G ~ is <strong>the</strong> general (quantificational)<br />

proposition that <strong>the</strong>re is exactly one F <strong>and</strong> every F is G. As<br />

such, <strong>the</strong> proposition has one <strong>of</strong> <strong>the</strong> st<strong>and</strong>ard truth values <strong>and</strong> can be<br />

completely characterized using quantifier-variable notation:<br />

(3x)((Vy)(Fy =- y = x) & Gx).<br />

Strawson argued against Russell's <strong>the</strong>ory on <strong>the</strong> grounds that it (a) fails<br />

to do justice to <strong>the</strong> way speakers ordinarily use sentences containing<br />

descriptive phrases to make statements <strong>and</strong> (b) rides roughshod over<br />

important distinctions (such as <strong>the</strong> distinction between <strong>the</strong> meaning <strong>of</strong> a<br />

sentence 4) <strong>and</strong> <strong>the</strong> statement made by a particular use <strong>of</strong> ~b). It is a part<br />

<strong>of</strong> <strong>the</strong> meaning <strong>of</strong> r<strong>the</strong> F 7, Strawson originally claimed, that such an<br />

expression is used correctly only if <strong>the</strong>re is an F. If this condition is not<br />

satisfied (if <strong>the</strong> "presupposition" that <strong>the</strong>re is an F is false, as he was later<br />

to put it), a use <strong>of</strong> e.g., r<strong>the</strong> F is G 7 cannot be considered to express a<br />

6 <strong>Grice</strong> provides fur<strong>the</strong>r examples in Essays 1 <strong>and</strong> 15.

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